<!DOCTYPE html>
<html lang="en">
  <head>
    <title>Video store home page</title>
    <style>
      :root {
        --bg-color: #659494;
        --text-color: #fff;
        --size-large: 30px;
        --size-medium: 20px;
      }

      header,
      nav,
      article,
      aside,
      footer {
        background: var(--bg-color);
        border-radius: 5px;
        color: var(--text-color);
        font-family: arial, san-serif;
        font-size: var(--size-large);
        text-align: center;
        padding: var(--size-large);
        margin-bottom: var(--size-medium);
      }

      header:before,
      nav:before,
      article:before,
      aside:before,
      footer:before {
        content: '<';
      }

      header:after,
      nav:after,
      article:after,
      aside:after,
      footer:after {
        content: '>';
      }

      article {
        float: left;
        margin-right: var(--size-medium);
        width: 60%;
      }

      aside {
        float: left;
        width: calc(40% - 140px);
      }

      footer {
        clear: both;
      }        
    </style>
  </head>
  <body>
    <header>header</header>
    <nav>nav</nav>
    <section>section</section>
    <footer>footer</footer>
  </body>
</html>
